I the being the one to explain front/backside. I shouldn't because I learned late what the deal was(talkin slides an grinds here). But I hate it. I was skating a construction site that had a pile of poorly stacked like sheet metal, so a de facto ledge. Having a good ol time and then another enterprising chap rolls up, now I usually leave at that point, I'm not good at skating and just don't like people, but he talked me into a sesh. Nice boul, had a six pack of sum beer with him and offered me one. I digress, so he bets me at skate like 4 times and like looks guy I'm really just tryin to boardslide this jawn. So we start skating the ledge thing. He's reggie and I'm goofy. He front bods it 1st try, dick, and I go for the plainversion. He goes oh shit front board, sick!... I was like baffled. Didn't say anything at first but my larry david took over. I calmly explained the difference and this guy was shocked and pretty much thought I was the asshole.
Tldr, I don't wanna tell you it's front/backside but I can't help myself.